Trowel.



0. K. BRANDSTROMI TROWEL. APPLIGATION FILED FEBJII, 1914 2 SHEETS-SHEET 1.

L1 1 1 433 Patented Sept. 22, 1914.

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THE NORRIS PETERS co.. FHOTO-LITHO WASHINGTON. u. c.

U. K. BRANDSTROM.

TROWEL.

APPLIOATION TILED FEB.11,1914.

l, 1 1 1,433. Pa ented Sept. 22, 1914.

2 SHEBTSSHEET 2.

THE NORRIS PETERS C0,, PHo'ro-urHa. WASHINGTON. 0 c

'cnARLns 'NRAD BRANnsrRoM, o mmm, WASHINGTON.

roazzwhomamayma ma Be it known that-I,QQHARLES KoNRAD BRANDSTROM, Icitizen of the United States,

residing at Seattle, in. thecounty of King and State of Washington, have invented certain new and ijusefu l "Improvements in Trowels, of whichthe ifollowing'is a specification, reference had to the accoinpanying drawings.

. This invention relates to" new and useful improvements in trowels and vmore particularlytoa san tary'cove plastergand cement trowel, the main object of the invention be- ":ing to provide a trowel of this character i whereinrneansis provided so that the sarne may be used upon perpendicular and hor zontal surfaces {and also upon concave and convex surfaces.

. 7 Another Zobject ;of "the. invention ,the:

provision of a'trowel (lith above character which-will possess advantages in points of: efficiency and durab l ty, 11s; "inexpensive to...

manufacture andfat the samej'time issimple; '1n construction andj'operatlon. I

With the above and other objectslin view as will become; apparent as v the description'i proceeds, the invention consists in certain constructlons, comb nations and arrange mentsof the parts thatfLshall hereinafter fully describeandclairnl I z I For a full understanding of the invention, reference is tobeha'd'tolthe' following description and accompanying drawings, in

which Figure 1 is a top plan of a trowel constructed in accordance "with my inven tion, Fig. 2 is a side elevation, Fig. 3is' a transverse sectional view taken on the line 3-3 of Fig. 1, Fig.4 is a detailed enlarged sectional view illustratingthe manner of attaching the reinforcing rib to the blade,

Fig. 5 is a detail perspective view of the screwing bolt, Fig. 6 isa detail perspective 1 ing a slightly modified form of the device,

, view of "the pivoted catch member, Fig. 7

is a detail perspective viewof the operating lever and Fig. 8 is a side elevation illustrat- ,In carrying out my invention, the blade 1 i is formed of spring steel or other similar material and centrally arranged'thereon at one end is a stationary ridge 2,,which is riveted or otherwise secured vto the blade 1. Projecting upwardly from the inner end of the ridge 2 is the standard 3, the-upper end of which is circular form and provided with a threaded opening 4. The handle N ED STATES-PATENT OFFICE- rnownn Specification. of Letters Patent. Patented S t 22 1914 A esm filed February 11, 1914. Serial 1101818443.

tened injits effective position.

In ordertofreinforc'efand'stifien the resilient blade 1,TIprovide a detachable'rib 7, which 15 preferably formed of steel and tapered, toward one end as indicated at 8 whilethe'other end thereof ishollow, and 1 preferably semi-circular in cross sectionas indicated at 9. The tapering end 8 is adapted to be removablyu engaged beneath a keeperlO, the ends-ofi which are riveted or otherwise securedto the bladef l as, shown at 11, extending 'within the'inner endof the rib 7 isthe inner end:of the, ridge 2,

whichis provided with an'inwardly Prbjectlug flange 1 3 and in order to securely fasten the irib7 i'n position, a movable bolt 14 is provided having alcatch 15 which is adapted to engage the flange j 13, to, securely retain the inner end of the rib 7 in'position. This bolt 14 is actuated by ineansof a lever 16 one end, of which islmounted .uponthe upper end of the bolt" while the other, end

thereof is p rovided'with an upwardly, pro- 1ectmg" handle portion17 adapted to be readily grasped by the fingersfto rotate the the rod 7 ."is furtherreta'ined position by a pivoted catch 18 having an arcuate lower end 19 adapted to engage with" the 'iupper 'surface ,of the semi-circular portion 9 of the rib,7 The catchf18fispivotally mounted upona movable lever 20,'said lever bemg pivotally mounted upon the standard 3 bolt 14 and engage or disengage the catch: 15' with the flange l3. The inner end'. of,

and provided at its lower end with a han' dle member 21 whereby the lever may be readilyactuated when desired. The lever 20 is provided in its body portion with two spaced openings, one of said openings being adapted to receive the pivot pin which secures said lever to. the standard 3, the other of said openings being adapted to receive the pivot pin which fastens the catch member 18 to the lever. Thus as the lever 20 is actuated, the catch member 18 will be engaged and disengaged from the upper surface of the rib 7. As illustrated'in Fig. 3, the catch member 18 is in its effective posi tion, the handle 21 of the lever being arranged in lowered position and as the lower end thereof is slightly curved, the finger the blade 1. i

may be readily inserted beneath the same to release the catch 18 when it is desired to remove the rib 7. 1 In removing the rib 7 the catch 18 is first released and the. bolt 14:.is then disengaged from the flange 13 so thatthe rib'may be readily removed from While I have showniand described'the rib 7 as a perfectly straight rigid rib, it will be apparent that in using my improved trowel, on cove WOI'l ,'lt will be necessary' to provlde a rod having a curved outer "end as illustrated in Fig. 8. The curved rod illustrated in Fig. 8, is secured to the blade 1 by firstbending upwardly upon the blade so i that the tapering end 80f the rib may be curved rod as illustrated in Fig. 8, placed engaged beneath the keeper 10. The inner end'of the rod is then secured in position and retained meansofthe pivoted catch 18. It will be'apparent that the straight rib in Fig, 2, may be readily removed and a in its operative position.

The handle member awhile shown inthe drawings as disposedupo'n'oneend of the trowel, maybe readily changedfto the op-.

posite side ofthe standard 3"and -.used

equally as well.

My improved trowel is, extremely simple in construction and canbe manufactured v at comparatively low cost. f While I have shown and described the preferred form of my invention, it will be obvious that various changes in the details of construction and in the proportions, jmay beresorted to for suecessfully carrying my 1 Copies ofth isipatent may be obtained for; live cents each, by acidressin'ig the. Cpmmissioner of Patents,

invention into practice iwith'out any of the novel features or departlng from the scope of the appended claims.

Having thus described the invention, what is claimed is 1. A trowel'oftheclass described including a resilient blade, a'ridge secured there to, a standard extending outwardly from the ridge, a stationary rib having a tapering end, a keeper adapted to receive said tapering end and means for removablyfsecuring the other endvof the to thebl jde; 2. A device of the class described ind ding a resilient blade, afridge plate secured thereto, a standard,projecting outwardly from said plate, a keeper carried by one end of the blade, a stationary rib having one end removably engaged beneath said keeper, the other endof saidrib being hollow and substantially semi-circular in form, a flange formed onthe inner end'ofthe ridge plate, a movable bolt carried, by said rib having a catch adapted to engage said flange'andmeans for actuatingsaid b'olt to engage and disengage the catch.

a. A device "r the class-described'i c1ud ing a resilient blade, a ridgesecuredthereto, an'outwar'dly projecting standard formed 1 on *said ridge, va-.reinforcinggrib, .aikeeper secured' to one end of; the blade and adapted to receive one end of the rib, a pivoted lever mounted upon saidfstandard-anda pivoted catch member. carriedbyf said lever and adaptedto engage the inner end of said and retain the same pbsiti'on'fl up on the blade.

In testimony whereof I 'hereuto signature in the presence oftwoywitnesses,

1 O R Es KQNRAD' N TROM- "Witnesses: H 'o v 1 B R W ELi N,

CLARENCE PL'SEEL'Y.

.Washington D. C. 

